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PROBLEM
Pressure reading
on the regulated
pressure gauge
drops when an
accessory ls
used.
OAUSm:
it is normal for "some"
pressure drop to occur.
Possible defect in safety
valve.
Knocking Noise.
Compressor is
not supplying
enough air
to operate
accessories.
Defective check valve.
Prolonged excessive use of
air.
Compressor is not large
enough for air requirement.
Hole in hose.
Check valve restricted.
Air Jeaks.
Restricted air intake filter.
CORRECTION
if there is an excessive
amount of pressure drop
when the accessory is used,
adjust the regulator fo!Iowing
the instructions in the
"Description of Operation"
paragraph in the "Operation
Section."
NOTE: Adjust the regulated
pressure under flow
conditions (while accessory is
bein used.
Operate safety valve
manually by pulJing on ring.
if vaJve stJIJleaks, it should
be replaced.
Remove and clean, or
replace.
Decrease amount of air
usage.
Check the accessory air
requirement, if it is higher
than the SCFM or pressure
supplied by your air
compressor, you need a
larger compressor.
Check and replace if
required.
Remove and clean, or
replace.
Tighten fittings.
Clean or replace air intake
filter. Do not operate the
air compressor with the
filter removed. Refer to the
"Air Filter" paragraph in the
"Maintenance" section.
Regulator knob Damaged regulator. Replace.
has continuous
air leak.
21- ENG A10819
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